chore: bump version to 4.27.5

[Soulter]

Summary

• backport 2ea3bd7e onto the exact v4.27.4 release baseline
• defer Dashboard asset setup until server startup
• bump the package version to 4.27.5 and add bilingual release notes

Validation

• uv run ruff format .
• uv run ruff check .
• uv run pytest tests/test_cli_init.py tests/test_fastapi_v1_dashboard.py (92 passed)

Release note

This is a hotfix branch based on v4.27.4. The v4.27.5 tag must point to this branch’s reviewed release commit so unreleased changes currently on master are not included.

Summary by Sourcery

Release the 4.27.5 hotfix with corrected first-run initialization and clearer missing-WebUI guidance.

Bug Fixes:

• Fix initial setup so Dashboard asset checks no longer prevent configuration initialization and ensure the initial password setup behavior is preserved.
• Improve missing WebUI asset responses with a bilingual HTML troubleshooting page and manual installation guidance.

Enhancements:

• Reduce unnecessary WebChat migration logging while preserving migration error propagation.

Build:

• Bump the package and runtime version to 4.27.5.

Documentation:

• Add bilingual 4.27.5 release notes.

Tests:

• Update CLI initialization and Dashboard endpoint tests for deferred asset setup and the new HTML error response.

[sourcery-ai]

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	astrbot-docs	61d2b49	Commit Preview URL Branch Preview URL	Aug 31 2026, 05:10 PM

[sourcery-ai]

Sourcery assessment

Approved.